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import numpy as np import matplotlib.pyplot as plt sm = 52.2 # å¹³åïŒæ¯å¹³åïŒ ss = 9.5 # æšæºåå·®ïŒæ¯æšæºåå·®ïŒ sn = 1000 # æ¯æ° x = np.random.normal(loc=sm, scale=ss, size=sn) plt.hist(x) plt.show()
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| 1 | 58.56 | 2 | 60.10 | 3 | 58.14 | 4 | 45.73 | 5 | 65.97 |
| 6 | 57.20 | 7 | 52.38 | 8 | 59.01 | 9 | 67.16 | 10 | 61.87 |
| 11 | 40.41 | 12 | 51.07 | 13 | 74.92 | 14 | 42.04 | 15 | 52.57 |
| 16 | 57.25 | 17 | 39.07 | 18 | 40.84 | 19 | 60.61 | 20 | 51.84 |
| 21 | 57.80 | 22 | 69.78 | 23 | 60.17 | 24 | 58.29 | 25 | 46.31 |
| 26 | 55.22 | 27 | 45.17 | 28 | 55.51 | 29 | 50.03 | 30 | 73.88 |
| 31 | 61.34 | 32 | 58.30 | 33 | 57.07 | 34 | 51.23 | 35 | 65.03 |
| 36 | 47.63 | 37 | 48.29 | 38 | 37.03 | 39 | 46.80 | 40 | 50.69 |
| 41 | 49.78 | 42 | 65.60 | 43 | 45.64 | 44 | 64.46 | 45 | 46.35 |
| 46 | 54.08 | 47 | 61.27 | 48 | 70.26 | 49 | 42.21 | 50 | 52.77 |
| 51 | 44.94 | 52 | 57.35 | 53 | 45.79 | 54 | 66.81 | 55 | 51.94 |
| 56 | 59.84 | 57 | 32.43 | 58 | 33.62 | 59 | 48.66 | 60 | 56.06 |
| 61 | 62.12 | 62 | 47.95 | 63 | 44.92 | 64 | 52.55 | 65 | 54.60 |
| 66 | 55.12 | 67 | 53.63 | 68 | 53.08 | 69 | 72.29 | 70 | 42.96 |
| 71 | 51.38 | 72 | 41.86 | 73 | 55.83 | 74 | 71.21 | 75 | 47.28 |
| 76 | 57.66 | 77 | 57.50 | 78 | 55.39 | 79 | 57.13 | 80 | 46.78 |
| 81 | 64.64 | 82 | 48.07 | 83 | 56.25 | 84 | 59.60 | 85 | 56.17 |
| 86 | 46.79 | 87 | 36.48 | 88 | 48.41 | 89 | 58.60 | 90 | 49.96 |
| 91 | 49.86 | 92 | 59.94 | 93 | 54.77 | 94 | 60.14 | 95 | 49.98 |
| 96 | 38.94 | 97 | 45.29 | 98 | 73.77 | 99 | 42.59 | 100 | 35.24 |
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import numpy as np import matplotlib.pyplot as plt import random sm = 52.2 # å¹³åïŒæ¯å¹³åïŒ ss = 9.5 # æšæºåå·®ïŒæ¯æšæºåå·®ïŒ sn = 10000 # æ¯æ° en = 5 # æšæ¬æ° x = np.random.normal(loc=sm, scale=ss, size=sn) sampled = random.sample(x.tolist(), en) #ç¡äœçºæœåº fig = plt.figure() ax1 = fig.add_subplot(2, 1, 1) ax2 = fig.add_subplot(2, 1, 2) ax1.hist(x) ax2.hist(sampled) plt.show() average1 = np.mean(x) stdev1 = np.std(x) average2 = np.mean(sampled) stdev2 = np.std(sampled) print('inf',sm,ss) print(sn,average1,stdev1) print(en,average2,stdev2)
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